One new Engineaire Composite Pre-Cleaner replacement filter (with 1.5″ inlet) that has all of the following features: – 1.5″ inlet size – Range from 3 to 20 CFM – Saves up to 12 times the life of the filter – Self-cleaning (i.e. no dust cup to clean) – Saves up to 25% on less engine maintenance – Molded fiber filled pre-filter – Saves up to 15% on oil costs – Removes up to 99.9% of large airborne particles – Saves up to 10% on fuel costs – Removes 94% of large SAE dirt particles – Saves up to 50% on less engine downtime – Extends engine life up to 25%